Or cropping machines



(No Model.)

B. MARTIN, T. P. DRAKE & J.v W. JOHNSON. BED FOR CLOTH SHEARING ORDROPPING MACHINES.

No; 421,865. Patented Feb. 18,1890.

UNITED STATES PATENT OFFICE.

EDWIN MARTIN, THOMAS FRED DRAKE, AND JOHN WIIJLIAM JOHNSON, OF LINDLEY,HUDDERSFIELD, COUNTY OF YORK, ENGLAND, ASSIGNORS TO MARTIN SONS & 00.,OF SAME PLACE.

BED FOR CLOTH SHEARING OR CROPPING MACHINES.

SPECIFICATION forming part of Letters Patent No. 421,865, dated February18, 1890.

Application filed January 2%, 1890\ Serial No- 337,810. (No model.)

To dZZ whom it may concern.-

Be it known that we, EDWIN MARTIN,-

THOMAS FRED DRAKE, and JOHN WILLIAM JOHNSON, subjects of the Queen ofGreat 5 Britain, residing at Lindley, Huddersfield, in the county ofYork, England, have invented certain new and useful Improvements in Bedsfor Cloth Shearing or Cropping Machines; and we do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The invention has reference to improvements in machines for shearing orcropping cloth, and particularly to such machines in which an elastic oryielding bearing-surface is secured to the top of the bed below thecutter; and it has for its object to secure that bearing-surface to itsbed by improved means which will give more satisfactory results thanobtained from the means heretofore employed to hold the bearing to itsseat.

To the accomplishment of such ends, the 2 5 invention consists in theconstruction and in the combination of parts hereinafter particularlydescribed and afterward claimed, reference being had to the accompanyingdrawing, forming part hereof, and in which is represented a verticalcross-section through a rotary helical cutter and suitable bed, showingthe manner of securing the bearing-surface or tube to its place.

In the drawing, the letter A designates a 3 5 suitable bed, formed inany suitable manner so as to have a Vertical Way through it--forinstance, by making it in two parts or sections secured together bybolts, as indicated by dotted lines 7a, with a space between thesections and bolts. Through this space passes a strip or piece ofsuitable material-say of glazed calico orfabric E-which passes aroundthe elastic tube 0, lying upon the apex of the bed, and which at asuitable point on its length is weighted-say at its lower endby a rod For otherwise. Thisweight holds the elastic bearing to its seat, and maybe said to render the bearing more yielding than when formed asheretofore. This strip of material is preferably made in theform of anendless apron, with the elastic roll or tube at the fold in its upperend and the weight F within the fold at its lower end, so that whenevernecessary or desirable the surface of the fabric which lies across thetop of the roll or tube may be shifted by simply slipping the apron upand down, and thus bring a new surface on top when one surface becomesworn .to suchan extent as to make it desirable to change the surface.

Another advantage that may be assigned to this construction is that thetube or roll may also turn or move on its seat without leaving it, andthus to that extent the bearing may still further yield to the pressureof the knots or protuberances in the cloth being sheared.

The bed is shown as formed with a grooved or recessed seat for the rollor tube to rest in, as such is considered to give the best results.

Having described our invention and set forth its merits, what we claimis 1. The combination, with asuitable bed, of an elastic or yieldingbearing to form a yielding support for a traveling fabric and a weightand means connectingit with the clastic bearingto hold the bearing toits seat, substantially as and for the purposes described.

2. The combination, with asuitable bed, of an elastic or yieldingbearing to form a support for a traveling fabric, a weight, and anendless strip or apron connecting the elastic bearing and weight,substantially as and for the purposes described.

In testimony whereof We affix our signatures in presence of twowitnesses.

EDWIN MARTIN. THOMAS FRED DRAKE. JOHN \VILLIAM JOHNSON.

